Replace Normalize with Normalize.css

BS3 commits: c5bed1a85017aea5d68b21600e09ee35395bb495
fix 12274

BS3 commits: ffdc18cbbf7d519ad741eb621345e2e4e28a18e9
add namespace `.bs` also to the event `dismiss.modal`

BS3 commits: 084f0fb11351e899decc33faf53ada85d29ea7fa